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Eutrema himalaicum Hook. f. & Thomson

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11. Eutrema himalaicum J. D. Hooker & Thomson, J. Proc. Linn. Soc., Bot. 5: 164. 1861. TYPE: India, Sikkim, 10,000–13,000 ft, J. D. Hooker s.n. (holotype, K!; isotype, K!).

Goldbachia lancifolia Franchet, Bull. Soc. Bot. Fr. 33: 408. 1886; Eutrema lancifolium (Franchet) O. E. Schulz in Engler, Pflanzenreich IV. 105(Heft 86): 35. 1924. TYPE: China. Yunnan, Likiang, 3800 m, 11 July 1884 , Delavay 701 (as 781 in the protologue)(holotype, P!; isotype, P!).

Sisymbrium hookeri Fournier, Recherch. Crucif. 120. 1865 [nomen illeg., cited E. himalaicum in synonymy].

Sisymbrium spectabile J. D. Hooker & Thomson ex Fournier, Recherch. Crucif. 121. 1865; Hesperis spectabilis (J. D. Hooker & Thomson ex Fournier) Kuntze, Revis. Gen. Pl. 2: 935. 1891. TYPE: Sikkim, J. D. Hooker s.n. (holotype, P!; isotypes, B!, K!).

Herbs perennial, sparsely to densley crisped pilose at least along leaf margin and midvein, with a short rhizome. Stems 30-80(-110) cm tall, erect, simple at base, branched above. Basal leaves rosulate, somewhat fleshy; petiole (2.5-)4-12(-17) cm; leaf blade ovate, oblong, or lanceolate, (1-)2-6(-8) ´ (0.7-)1.5-4(-5) cm, base cordate or rounded to cuneate, margin entire, apex obtuse to subacute; middle cauline leaves lanceolate to oblong-lanceolate or ovate, 3-6(-8) ´ 0.7-2(-3) cm, pinnately veined, sessile, base rounded to auriculate, margin denticulate or sparsely so near base, apex acuminate to acute. Raceme ebracteate, lax, main branch 10-25(-40) cm; fruiting pedicels divaricate, (0.5-)0.7-1.8(-2.2) cm. Sepals ovate, 2-2.5 ´ 1-1.5 mm, deciduous; petals white, spatulate, 4-5 ´ 2.5-3 mm; filaments white, 1.5-2 mm, slightly dilated at base; anthers oblong, ca. 0.5 mm; ovules 4-8 per ovary. Fruit linear or rarely oblong, (0.8-)1.2-2(-2.5) cm ´ 1.5-3 mm, slightly 4-angled, subtorulose; valves cuneate at both ends, with a prominent midvein; gynophore to 0.5 mm; septum perforated or complete; style 0.5-1 mm. Seeds oblong, plump, 2-3 ´ 1-1.5 mm.

Flowering: May-Aug.

Habitat: stream banks, swampy or alpine meadows, among rocks.

Elevation: 3300- 4400 m.

Distribution: Bhutan, China (Sichuan, Xizang [Tibet], Yunnan), India (Sikkim).